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1 /* PR c/68966 - atomic_fetch_* on atomic_bool not diagnosed
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2 Test to verify that calls to __atomic_fetch_op funcions with a _Bool
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3 argument are rejected. This is necessary because GCC expects that
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4 all initialized _Bool objects have a specific representation and
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5 allowing atomic operations to change it would break the invariant. */
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6 /* { dg-do compile } */
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7 /* { dg-options "-pedantic-errors -std=c11" } */
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8
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9
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10 void test_atomic_bool (_Atomic _Bool *a)
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11 {
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12 enum { SEQ_CST = __ATOMIC_SEQ_CST };
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13
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14 __atomic_fetch_add (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_add." } */
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15 __atomic_fetch_sub (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_sub." } */
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16 __atomic_fetch_and (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_and." } */
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17 __atomic_fetch_xor (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_xor." } */
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18 __atomic_fetch_or (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_or." } */
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19 __atomic_fetch_nand (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_fetch_nand." } */
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20
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21 __atomic_add_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_add_fetch." } */
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22 __atomic_sub_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_sub_fetch." } */
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23 __atomic_and_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_and_fetch." } */
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24 __atomic_xor_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_xor_fetch." } */
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25 __atomic_or_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_or_fetch." } */
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26 __atomic_nand_fetch (a, 1, SEQ_CST); /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__atomic_nand_fetch." } */
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27
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28 /* The following are valid and must be accepted. */
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29 _Bool val = 0, ret = 0;
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30 __atomic_exchange (a, &val, &ret, SEQ_CST);
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31 __atomic_exchange_n (a, val, SEQ_CST);
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32 __atomic_compare_exchange (a, &val, &ret, !1, SEQ_CST, SEQ_CST);
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33 __atomic_compare_exchange_n (a, &val, ret, !1, SEQ_CST, SEQ_CST);
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34 __atomic_test_and_set (a, SEQ_CST);
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35 __atomic_clear (a, SEQ_CST);
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36 }
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37
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38 void test_bool (_Bool *b)
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39 {
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40 enum { SEQ_CST = __ATOMIC_SEQ_CST };
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41
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42 __atomic_fetch_add (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_add." } */
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43 __atomic_fetch_sub (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_sub." } */
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44 __atomic_fetch_and (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_and." } */
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45 __atomic_fetch_xor (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_xor." } */
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46 __atomic_fetch_or (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_or." } */
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47 __atomic_fetch_nand (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_fetch_nand." } */
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48
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49 __atomic_add_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_add_fetch." } */
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50 __atomic_sub_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_sub_fetch." } */
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51 __atomic_and_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_and_fetch." } */
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52 __atomic_xor_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_xor_fetch." } */
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53 __atomic_or_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_or_fetch." } */
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54 __atomic_nand_fetch (b, 1, SEQ_CST); /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__atomic_nand_fetch." } */
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55
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56 /* The following are valid and must be accepted. */
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57 _Bool val = 0, ret = 0;
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58 __atomic_exchange (b, &val, &ret, SEQ_CST);
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59 __atomic_exchange_n (b, val, SEQ_CST);
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60 __atomic_compare_exchange (b, &val, &ret, !1, SEQ_CST, SEQ_CST);
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61 __atomic_compare_exchange_n (b, &val, ret, !1, SEQ_CST, SEQ_CST);
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62 __atomic_test_and_set (b, SEQ_CST);
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63 __atomic_clear (b, SEQ_CST);
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64 }
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